CN104981023A - Power wireless communication resource scheduling method - Google Patents

Abstract

The invention discloses a power wireless communication resource scheduling method. The method comprises the steps that the transmission rate allowed by a user terminal is estimated according to a channel quality indicator, which is acquired by a micro base station and a macro base station, of the user terminal; according to the transmission rate allowed by the user terminal, average rate and the position information of an uplink user terminal, which is provided with introduced same frequency interference, of the micro base station, PF factor resource scheduling is carried out; a PF factor of a downlink user terminal of the macro base station in the area of the uplink user terminal, which is provided with introduced same frequency interference, of the micro base station and the surrounding preset area coverage is multiplied by alpha, so as to determine uplink and downlink user terminals of the highest priority; and the average rate of uplink and downlink user terminals of the highest priority is updated. According to the invention, the PF factor of the downlink user of the macro base station in the area of the uplink user, which is provided with introduced same frequency interference, of the micro base station and the surrounding preset area coverage is multiplied by alpha; the scheduling priority of the uplink user terminal with introduced same frequency interference is reduced; and same frequency interference is avoided.

Description

A kind of electric power wireless communication resources dispatching method

Technical field

The present invention relates to wireless communication technology field, more particularly, relate to a kind of electric power wireless communication resources dispatching method.

Background technology

In recent years, State Grid Corporation of China relies on power information acquisition system, distribution monitoring system, electrical power distribution automatization system and various production management system construction, a large amount of exploration and practice has been carried out in adapted telecommunication field, especially, under the development of forth generation wireless broadband communication technology promotes, Duo Jia Utilities Electric Co. carries out the research work of LTE 230 MHz electric power Wireless Broadband Communication Systems.Due to the business characteristic of powerline network, the requirement of its fail safe and real-time, still needs to carry out adjusting to the correlation technique of LTE and improve.

In cell mobile communication systems, according to the difference sending signal duplex mode, time division duplex (Time Division Duplex, TDD) and Frequency Division Duplexing (FDD) (Frequency Division Duplex, FDD) two kinds of duplex modes can be divided into.Described TDD duplex mode adopts non-paired frequency spectrum resource configuration mode, and its spectrum disposition is flexible, and utilance is higher.Meanwhile, described TDD duplex mode can go up to adopt uplink/downlink resource proportional arrangement flexibly, can the asymmetrical IP Packet Service of more effective support.Described FDD duplex mode adopts paired spectrum resource distribution, and arranges guard band between up-downgoing frequency band, and intrasystem interference is comparatively simple, and in addition, described FDD duplex mode can better supports mobile high-speed mobile scene and the wider scope of covering.

In recent years, power communication heterogeneous network receives extensive concern and the research of Utilities Electric Co..By increasing some low power nodes in the coverage of macro base station, such as micro-base station, millimicro base station, Home eNodeB, remote radio frequency node (Remote Radio Head, and repeater etc. (being generally completely called micro-base station) RRH), the covering to hot zones can be strengthened, thus effectively improve the throughput of whole powerline network.

Energy communication service mainly comprises power information collection, power consumption equipment monitor and forecast, electricity information disclosure (peak valley Spot Price information etc.), uses power mode and power generation needs analysis etc.For some user terminals, its upstream traffic is apparently higher than downlink traffic.Therefore, duplex mode is more flexibly needed to adopt to adapt to this communication requirement.

Radio communication has the advantages such as networking flexibility, difficulty of construction is little, networking cost is low, thus becomes adapted electricity link important communication mode.But, compared to cable network, wireless network has the feature that available frequency resource is less, wireless propagation environment is severe, thus how frequency spectrum resource limited in mobile communication system is carried out reasonable distribution, make user performance and power system capacity reach associating optimum state become wireless resource scheduling need solve key issue.Traditional basic dispatching algorithm comprises: poll (RR) algorithm, max carrier to interference (max C/I) algorithm, direct proportion justice (PF) algorithm.Wherein PF algorithm can obtain certain compromise between throughput of system and service fairness.In addition some are also had such as, in order to meet the innovatory algorithm based on PF of user QoS (Quality of Service, service quality) demand, M-LWDF algorithm ,-EXP algorithm etc.

Although adopt the macro base station of duplex configuration flexibly and micro-base station identical networking system to meet actual communication needs, improve the utilance of frequency spectrum resource, compared to traditional macro base station and micro-base station identical networking system, the system increases new interference.The co-channel interference of micro-base station uplink user terminal to the macro base station downlink user terminal of the identical time slot same frequency band of employing is all introduced, as shown in Figure 1 by the flexible duplex system of TDD with FDD evolution.Therefore, in order to reduce the impact of this co-channel interference on system, base station needs when carrying out Resourse Distribute to take suitable strategy.But, in existing resource allocation algorithm, polling algorithm successively by frequency resource allocation to user, other algorithm only considers the channel condition information between base station and user, and does not consider the impact of the co-channel interference between user.Therefore, for the employing macro base station of flexible duplex mode and the cellular system of micro-base station identical networking, how to reduce the micro-base station co-channel interference of uplink user terminal to macro base station downlink user terminal and become one of those skilled in the art's technical problem urgently to be resolved hurrily.

Summary of the invention

A kind of electric power wireless communication resources dispatching method is the object of the present invention is to provide to solve micro-base station uplink user terminal to the problem of macro base station downlink user terminal co-channel interference.

For achieving the above object, following technical scheme is embodiments provided:

A kind of electric power wireless communication resources dispatching method, be applied in the macro base station and micro-base station identical networking system adopting duplex configuration flexibly, it is characterized in that, described method comprises:

Obtain Mean Speed and the CQI information of user terminal, described user terminal comprises uplink user terminal and downlink user terminal;

The transmission rate that the described user terminal current time adopting CQI data-evaluation described in adaptive coding technical basis to match with it allows;

The positional information of uplink user terminal according to the transmission rate of the current permission of user terminal, Mean Speed and micro-base station of introducing co-channel interference carries out disturbing based on space isolation the PF factor scheduling of resource avoided, the PF factor of the downlink user terminal of macro base station within the scope of the uplink user terminal region of micro-base station of described introducing co-channel interference and surrounding predeterminable area thereof is multiplied by α, described α is greater than 0 and is less than 1, and determines the uplink user terminal that priority is the highest and downlink user terminal;

The Mean Speed of user terminal upgrading the highest user terminal of described priority and be not scheduled.

Preferably, in above-mentioned electric power wireless communication resources dispatching method, the Mean Speed of described acquisition user terminal and CQI information, comprising:

Macro base station and micro-base station obtain CQI information and the Mean Speed of uplink user terminal and the downlink user terminal matched with it respectively.

Preferably, in above-mentioned electric power wireless communication resources dispatching method, the transmission rate that described in described employing adaptive coding technical basis, user terminal current time described in CQI data-evaluation allows, comprising:

Utilize adaptive coding technical basis CQI information of user terminal described in each to determine the MCS mode of each user terminal, and then determine by searching TBS mapping table the transmission rate that each user terminal allows at current time.

Preferably, in above-mentioned electric power wireless communication resources dispatching method, according to the transmission rate of the current permission of user terminal, the positional information of the uplink user terminal of micro-base station of Mean Speed and introducing co-channel interference carries out disturbing based on space isolation the PF factor scheduling of resource avoided, the PF factor of the downlink user terminal of macro base station within the scope of the uplink user terminal region of micro-base station of described introducing co-channel interference and surrounding predeterminable area thereof is multiplied by α, described α is greater than 0 and is less than 1, and determine the uplink user terminal that priority is the highest and downlink user terminal, comprise:

According to the user obtained, macro base station and micro-base station believe that the transmission rate that the current time of terminal allows and Mean Speed calculate the direct proportion fairness index of user terminal;

The user terminal the highest with the priority of described micro-base station matches is determined according to described direct proportion fairness index;

Macro base station obtains the highest uplink user terminal identification information of described priority by described micro-base station;

Corresponding to the positional information that described macro base station calculates described identification information place and with the distance of described positional information in preset range, the downlink user terminal that matches with described macro base station;

Described macro base station according to described direct proportion fairness index, described positional information and with the distance of described positional information in preset range, the downlink user terminal that matches with described macro base station carries out scheduling of resource, the user terminal that the priority obtaining matching with described macro base station is the highest.

Preferably, in above-mentioned electric power wireless communication resources dispatching method, according to the user obtained, described macro base station and micro-base station believe that the transmission rate that the current time of terminal allows and Mean Speed calculate the direct proportion fairness index of user terminal, comprising:

Described macro base station is according to formula calculate the direct proportion fairness index of the uplink user terminal matched with described macro base station according to formula calculate the direct proportion fairness index of the downlink user terminal matched with described macro base station

Described micro-base station is according to formula calculate the direct proportion fairness index with the uplink user terminal of described micro-base station matches according to formula calculate the direct proportion fairness index with the downlink user terminal of described micro-base station matches

Wherein, described u _{mac, U}represent the uplink user terminal matched with described macro base station, u _{mac, D}represent the downlink user terminal matched with described macro base station, described u _{mic, U}represent the uplink user terminal with described micro-base station matches, u _{mic, D}represent the downlink user terminal with described micro-base station matches, described DRC is the transmission rate that user terminal current time allows, and described R is the Mean Speed of user terminal.

Preferably, in above-mentioned electric power wireless communication resources dispatching method, describedly determine the user terminal the highest with the priority of described micro-base station matches according to described direct proportion fairness index, comprising:

Described micro-base station according to calculate with the direct proportion fairness index of the user terminal of described micro-base station matches and formula calculate the uplink user terminal the highest with the priority of described micro-base station matches, according to formula calculate the downlink user terminal the highest with the priority of described micro-base station matches, described x1 is the quantity with the uplink user terminal of described micro-base station matches, and described y1 is the quantity with the downlink user terminal of described micro-base station matches.

Preferably, in above-mentioned electric power wireless communication resources dispatching method, described macro base station according to described direct proportion fairness index, described positional information and with the distance of described positional information in preset range, the downlink user terminal that matches with described macro base station carries out scheduling of resource, the user terminal that the priority obtaining matching with described macro base station is the highest, comprising:

The direct proportion fairness index of the uplink user terminal that described macro base station matches according to described and described macro base station and formula calculate the uplink user terminal that the priority that matches with described macro base station is the highest;

By described positional information and with the distance of described positional information in preset range, the routine fairness index of downlink user terminal that matches with described macro base station is multiplied by α, described α is greater than 0 and is less than 1;

According to formula calculate the downlink user terminal that the priority that matches with described macro base station is the highest, described in for the routine fairness index of the downlink user terminal that uplink user terminal the highest for described priority and described macro base station are determined according to the positional information of described uplink user terminal be multiplied by α after the direct proportion fairness index that obtains;

Described x2 is the quantity of the uplink user terminal matched with described macro base station, and described y2 is the quantity of the downlink user terminal matched with described macro base station.

Preferably, in above-mentioned electric power wireless communication resources dispatching method, the user terminal that the described priority of described renewal is the highest and the Mean Speed of user terminal be not scheduled, comprising:

According to formula calculate the Mean Speed of the uplink user the highest with the priority of described micro-base station matches, according to formula calculate the Mean Speed of the downlink user the highest with the priority of described micro-base station matches, according to formula calculate the Mean Speed of the highest uplink user of the priority that matches with described macro base station, according to formula the Mean Speed of the downlink user that the priority matched with described macro base station is the highest, is set to 0 by the transmission rate that the user terminal current time of the described user terminal be not scheduled allows.

Preferably, in above-mentioned electric power wireless communication resources dispatching method, according to the user obtained, described macro base station and micro-base station believe that the transmission rate that the current time of terminal allows and Mean Speed calculate the direct proportion fairness index of user terminal, comprising:

Described macro base station is according to formula calculate the direct proportion fairness index of the downlink user terminal matched with described macro base station described micro-base station is according to formula calculate the direct proportion fairness index with the uplink user terminal of described micro-base station matches

U _{mac, D}represent the downlink user terminal matched with described macro base station, described u _{mic, U}represent the uplink user terminal with described micro-base station matches, described DRC is the transmission rate that user terminal current time allows, and described R is the Mean Speed of user terminal.

Preferably, in above-mentioned electric power wireless communication resources dispatching method, the described upstream and downstream user terminal the highest according to described direct proportion fairness index determination priority, comprising:

Described micro-base station according to calculate with the direct proportion fairness index of the user terminal of described micro-base station matches and formula calculate the uplink user terminal the highest with the priority of described micro-base station matches;

Described x1 is the quantity with the uplink user terminal of described micro-base station matches.

Preferably, in above-mentioned electric power wireless communication resources dispatching method, according to the transmission rate of the current permission of user terminal, the positional information of the uplink user terminal of micro-base station of Mean Speed and introducing co-channel interference carries out disturbing based on space isolation the PF factor scheduling of resource avoided, the PF factor of the downlink user terminal of macro base station within the scope of the uplink user terminal region of micro-base station of described introducing co-channel interference and surrounding predeterminable area thereof is multiplied by α, described α is greater than 0 and is less than 1, and determine the uplink user terminal that priority is the highest and downlink user terminal, comprise:

The routine fairness index of downlink user terminal uplink user terminal the highest for described priority and described macro base station determined according to the positional information of described uplink user terminal is multiplied by α, and described α is greater than 0 and is less than 1;

According to formula calculate the downlink user terminal that the priority that matches with described macro base station is the highest, described in for the routine fairness index of the downlink user terminal that uplink user terminal the highest for described priority and described macro base station are determined according to the positional information of described uplink user terminal be multiplied by α after the direct proportion fairness index that obtains;

Described y2 is the quantity with the downlink user terminal of described micro-base station matches.

Preferably, in above-mentioned electric power wireless communication resources dispatching method, the uplink user terminal that the described priority of described renewal is the highest and downlink user terminal and the Mean Speed of user terminal be not scheduled, comprising:

According to formula calculate the Mean Speed of the uplink user the highest with the priority of described micro-base station matches, according to formula the Mean Speed of the downlink user that the priority matched with described macro base station is the highest.

Known by above scheme, when disclosed in employing the above embodiments of the present application, method carries out Resourse Distribute, in order to reduce the co-channel interference between micro-base station uplink user and macro base station downlink user, adopt and disturb the PF factor scheduling of resource avoided to carry out scheduling of resource to uplink user terminal and downlink user terminal based on space isolation, the PF factor of the downlink user of macro base station within the scope of the uplink user region of micro-base station of introducing co-channel interference and surrounding predeterminable area thereof is multiplied by α (0< α <1), reduce the dispatching priority of the uplink user of this introducing co-channel interference, and then play the object that co-channel interference is avoided in space isolation.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the communication schematic diagram between user terminal, macro base station, micro-base station;

The flow chart of Fig. 2 a kind of electric power wireless communication resources dispatching method disclosed in the embodiment of the present application;

The flow chart of Fig. 3 a kind of electric power wireless communication resources dispatching method disclosed in another embodiment of the application;

The subframe structure schematic diagram of Fig. 4 micro-base station and macro base station disclosed in the application one embodiment;

The flow chart of Fig. 5 electric power wireless communication resources dispatching method disclosed in the application one specific embodiment;

The subframe structure schematic diagram of Fig. 6 micro-base station and macro base station disclosed in another embodiment of the application;

The flow chart of Fig. 7 electric power wireless communication resources dispatching method disclosed in another specific embodiment of the application.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

The flow chart of Fig. 2 a kind of electric power wireless communication resources dispatching method disclosed in the embodiment of the present application.

Before electric power wireless communication resources dispatching method disclosed in the present application controls in employing, can conveniently calculate, can in advance according to and the distance of center of housing estate macro base station and the se ctor partition of macro base station, Region dividing is carried out to cellular cell.That is: the radius setting cellular cell is R, R is carried out k decile, makes R ₁=R/k, R ₂=2R/k ... R _k=R, with R _i(i=1,2 ... k) for radius does circle respectively, microzonation is divided into k region; Macro base station is set and has l sector, with R _idivision combine microzonation is divided into kl region.

See Fig. 2, the method comprises:

Step S201: the Mean Speed and the CQI information (CQI) that obtain user terminal, described user terminal comprises uplink user terminal and downlink user terminal;

This step specifically comprise for: macro base station and micro-base station obtain CQI information and the Mean Speed of uplink user terminal and the downlink user terminal matched with it respectively.

Step S202: the transmission rate that the described user terminal current time adopting CQI data-evaluation described in adaptive coding technical basis to match with it allows;

This step specifically can comprise: utilize adaptive coding technical basis CQI information of user terminal described in each to determine the coded modulation scheme (MCS) of each user terminal, and then allows base station to the transmission rate of each user terminal by searching transmission block size (TBS) mapping table determination current time.

Step S203: carry out disturbing based on space isolation the PF factor scheduling of resource avoided according to the positional information of the transmission rate of the current permission of user terminal, history average transmission rate and described uplink user terminal, the PF factor of the downlink user terminal of macro base station within the scope of the uplink user terminal region of micro-base station of introducing co-channel interference and surrounding predeterminable area thereof is multiplied by α, described α is greater than 0 and is less than 1, and determines the uplink user terminal that priority is the highest and downlink user terminal;

Step S204: the Mean Speed of user terminal that the scheduling result according to described PF factor scheduling of resource upgrades the highest uplink user terminal of described priority and downlink user terminal and is not scheduled.

When disclosed in employing the above embodiments of the present application, method carries out Resourse Distribute, in order to reduce the co-channel interference between micro-base station uplink user and macro base station downlink user, adopt and disturb the PF factor scheduling of resource avoided to carry out scheduling of resource to uplink user terminal and downlink user terminal based on space isolation, the PF factor of the downlink user of macro base station within the scope of the uplink user region of micro-base station of introducing co-channel interference and surrounding predeterminable area thereof is multiplied by α (0< α <1), reduce the dispatching priority of the uplink user of this introducing co-channel interference, and then play the object that co-channel interference is avoided in space isolation.

Visible said method adopt propose in the macro base station of flexible duplex mode and micro-base station identical networking system isolate terminal room based on space and disturb the resource regulating method avoided, meet the communication requirement of power communication system upstream traffic much larger than downlink traffic, improve the utilance of frequency spectrum resource, the mode of simultaneously being isolated by space reduces micro-base station uplink user terminal to the co-channel interference of macro base station downlink user terminal, reduces the loss of power system capacity.

Conveniently understand, the application has also carried out detailed explanation to the detailed process of step S203 in said method, and see Fig. 3, described step S203 specifically can comprise:

Step S2031: according to the user obtained, macro base station and micro-base station believe that the transmission rate that the current time of terminal allows and Mean Speed calculate the direct proportion fairness index of user terminal;

Step S2032: determine the user terminal the highest with the priority of described micro-base station matches according to described direct proportion fairness index;

Step S2033: macro base station obtains the highest uplink user terminal identification information of described priority by described micro-base station;

If there is co-channel interference in system, then the uplink user terminating machine that in micro-base station, described in this, priority is the highest is the uplink user terminal producing co-channel interference.Therefore described micro-base station will represent that the expression information of this uplink user terminal is reported to macro base station, and macro base station can determine this uplink user terminal region P according to described identification information _i,j, wherein i=1,2 ... k, for representing the distance that it arrives macro base station, j=0,1 ... l (l>=3) is for representing the sector at its place.

Step S2034: corresponding to the positional information that described macro base station calculates described identification information place and with the distance of described positional information in preset range, the downlink user terminal that matches with described macro base station;

Described macro base station, when carrying out downlink resource and distributing, needs to reduce the uplink user terminal region P producing micro-base station of co-channel interference with its downlink user terminal _i,jand near zone the dispatching priority of the downlink user of interior macro base station;

If i=1, then its peripheral region $P_{around}^1=\{P_{1,\mathrm{mod}(j-1,l)},P_{1,\mathrm{mod}(j+1,l)},P_{2,j}\},$

If i=k, then its peripheral region $P_{around}^k=\{P_{k-1,j},P_{k,\mathrm{mod}(j-1,l)},P_{k,\mathrm{mod}(j+1,l)}\};$

If i is ∈ { 1,2...k} and i ≠ 1, k, then its peripheral region

Wherein mod () represents modulo operation.

Step S2035: described macro base station according to described direct proportion fairness index, described positional information and with the distance of described positional information in preset range, the downlink user terminal that matches with described macro base station carries out scheduling of resource, the user terminal that the priority obtaining matching with described macro base station is the highest;

In this step, described macro base station calculates the PF factor of this downlink user terminal according to permission speed DRC (t) of downlink user end current time and Mean Speed R (t), because needs reduce P _i,jand surrounding predeterminable area scope the dispatching priority of the downlink user terminal of interior macro base station, is therefore multiplied by a factor alpha (0< α <1), is then carrying out the scheduling of the PF factor in the PF factor of these district's intra domain users.

Wherein, the detailed process of described step S2031 can be:

A1: described macro base station is according to formula calculate the direct proportion fairness index of the uplink user terminal matched with described macro base station according to formula calculate the direct proportion fairness index of the downlink user terminal matched with described macro base station

Described micro-base station is according to formula calculate the direct proportion fairness index with the uplink user terminal of described micro-base station matches according to formula calculate the direct proportion fairness index with the downlink user terminal of described micro-base station matches

Wherein, described u _{mac, U}represent the uplink user terminal matched with described macro base station, u _{mac, D}represent the downlink user terminal matched with described macro base station, described u _{mic, U}represent the uplink user terminal with described micro-base station matches, u _{mic, D}represent the downlink user terminal with described micro-base station matches, described DRC is the transmission rate that user terminal current time allows, and described R is the Mean Speed of user terminal.

Or the detailed process of described step S2031 can be:

A2: described macro base station is according to formula calculate the direct proportion fairness index of the downlink user terminal matched with described macro base station described micro-base station is according to formula calculate the direct proportion fairness index with the uplink user terminal of described micro-base station matches

U _{mac, D}represent the downlink user terminal matched with described macro base station, described u _{mic, U}represent the uplink user terminal with described micro-base station matches, described DRC is the transmission rate that user terminal current time allows, and described R is the Mean Speed of user terminal.

Corresponding with described A1, the detailed process of described step S3032 can be:

B1: described micro-base station according to calculate with the direct proportion fairness index of the user terminal of described micro-base station matches and formula calculate the uplink user terminal the highest with the priority of described micro-base station matches, according to formula calculate the downlink user terminal the highest with the priority of described micro-base station matches.

Corresponding with described A2, the detailed process of described step S2032 can be:

B2: described micro-base station according to calculate with the direct proportion fairness index of the user terminal of described micro-base station matches and formula calculate the uplink user terminal the highest with the priority of described micro-base station matches.

Corresponding with described A1, the detailed process of described step S2033 can be:

C1: the direct proportion fairness index of the uplink user terminal that described macro base station matches according to described and described macro base station and formula calculate the uplink user terminal that the priority that matches with described macro base station is the highest;

By described positional information and with the distance of described positional information in preset range, the routine fairness index of downlink user terminal that matches with described macro base station is multiplied by α, described α is greater than 0 and is less than 1;

According to formula calculate the downlink user terminal that the priority that matches with described macro base station is the highest, described in for the routine fairness index of the downlink user terminal that uplink user terminal the highest for described priority and described macro base station are determined according to the positional information of described uplink user terminal be multiplied by α after the direct proportion fairness index that obtains.

Corresponding with described A2, the detailed process of described step S2033 can be:

C2: the routine fairness index of downlink user terminal uplink user terminal the highest for described priority and described macro base station determined according to the positional information of described uplink user terminal is multiplied by α, and described α is greater than 0 and is less than 1;

According to formula calculate the downlink user terminal that the priority that matches with described macro base station is the highest, described in for the routine fairness index of the downlink user terminal that uplink user terminal the highest for described priority and described macro base station are determined according to the positional information of described uplink user terminal be multiplied by α after the direct proportion fairness index that obtains.

Corresponding with described A1, the detailed process of described step S2034 can be:

D1: according to formula calculate the Mean Speed of the uplink user the highest with the priority of described micro-base station matches, according to formula calculate the Mean Speed of the downlink user the highest with the priority of described micro-base station matches, according to formula calculate the Mean Speed of the highest uplink user of the priority that matches with described macro base station, according to formula the Mean Speed of the downlink user that the priority matched with described macro base station is the highest, is set to 0 by the transmission rate that the user terminal current time of the described user terminal be not scheduled allows.

Corresponding with described A2, the detailed process of described step S2034 can be:

D2: according to formula calculate the Mean Speed of the uplink user the highest with the priority of described micro-base station matches, according to formula the Mean Speed of the downlink user that the priority matched with described macro base station is the highest.

In order to the said method corresponding to A1 disclosed in the embodiment of the present application is clearly introduced, application additionally uses a specific embodiment and carries out expansions explanation to the method:

In the present embodiment, the radius of macro base station community is set as R=1km, by radius of society trisection, with R ₁=1000/3m, R ₂=2000/3m, R ₃=1000m is respectively radius and draws circle, divides into three parts by little.Assuming that macro base station has 4 sectors, then microzonation is divided into 4 regions, in conjunction with R according to the coverage of each sector ₁, R ₂and R ₃division, macro base station microzonation is divided into 12 region P _i,j(i=1,2,3, j=0,1,2,3), wherein said i and j represents distance and the sector position of this zone distance center base station respectively.

40 of system subbands are divided into two symmetrical frequency bands namely: 223.025 ~ 228.325MHz and 228.400 ~ 235.000MHz, frequency band 1 and frequency band 2 can be called, macro base station is at frequency band 1 and set forth upward signal, transmission of downlink signal on band 2, upward signal is transmitted on band 1 in micro-base station, alternate transport uplink and downlink signal on band 2, its configuration mode as shown in Figure 4.

Assuming that the uplink user terminal u of macro base station in cellular cell _{mac, U}∈ 1,2 ... 30}, downlink user terminal u _{mac, D}∈ 1,2 ... 30}, the uplink user terminal u of micro-base station _{mic, U}∈ 1,2 ... 15}, downlink user terminal u _{mic, D}∈ 1,2 ... 5}.Resource Block on macro base station frequency band 1 is designated as on frequency band 2, Resource Block is designated as resource Block on micro-base station frequency band 1 is designated as on frequency band 2, Resource Block is designated as for this scene, for 3 in Fig. 4,4 and 7,8 subframes, that introduces that the present invention proposes for the length of a radio frames avoids the idiographic flow (its flow chart is as shown in Figure 5) of resource scheduling algorithm based on the interference of space isolation terminal:

S501: macro base station and micro-base station obtain CQI and the Mean Speed information of the user terminal matched with it respectively;

That is, in the present embodiment, macro base station collects CQI and the Mean Speed information of its 30 uplink user terminals and 30 downlink user terminals, and CQI and the Mean Speed information of its 15 uplink user terminals and 5 downlink user terminals are collected in micro-base station;

S502: macro base station and micro-base station utilize AMC technology respectively, according to the CQI information of each user terminal obtained, determine the MCS mode of each user terminal, and determine permission transmission rate DRC (t) of each terminal at the current RB of current time by searching TBS mapping table;

S503: macro base station and micro-base station allow transmission rate and Mean Speed to adopt the direct proportion fairness index of following each user terminal of formulae discovery according to the current time of the uplink and downlink user terminal matched with it received:

$\begin{array}{c}{\mathrm{PF}}_{u_{Mac,U}}^{Mac,U}(n,t)=\frac{{\mathrm{DRC}}_{u_{Mac,U}}(n,t)}{R_{u_{Mac,U}}(n,t)},{\mathrm{PF}}_{u_{Mac,D}}^{Mac,D}(n,t)=\frac{{\mathrm{DRC}}_{u_{Mac,D}}(n,t)}{R_{u_{Mac,D}}(n,t)}\\ {\mathrm{PF}}_{u_{Mic,U}}^{Mic,U}(n,t)=\frac{{\mathrm{DRC}}_{u_{Mic,U}}(n,t)}{R_{u_{Mic,U}}(n,t)},{\mathrm{PF}}_{u_{Mic,D}}^{Mic,D}(n,t)=\frac{{\mathrm{DRC}}_{u_{Mic,D}}(n,t)}{R_{u_{Mic,D}}(n,t)}\end{array};$

S504: the uplink and downlink user terminal that priority is the highest, according to the direct proportion fairness index calculated, is selected in micro-base station:

$\begin{array}{c}{u}_{Mic,U}^{*}(n,t)=\arg \underset{u_{Mic,U}\&Element;\{1,2,\mathrm{...},15\}}{\max }{\mathrm{PF}}_{u_{Mic,U}}^{Mic,U}(n,t)\\ u_{Mic,D}^{*}(n,t)=\arg \underset{u_{Mic,D}\&Element;\{1,2,\mathrm{...},5\}}{\max }{\mathrm{PF}}_{u_{Mic,D}}^{Mic,D}(n,t)\end{array};$

S505: micro-base station is by uplink user terminal the highest for the priority of scheduling on frequency band 2 (wherein n ∈ RB ^{mic, U}) report to macro base station, macro base station determines the uplink user terminal that described priority is the highest region P _i,j(i ∈ { 1,2,3}, j ∈ { 0,1,2,3}) and predeterminable area scope around it

If i=1, then its peripheral region $P_{around}^1=\{P_{1,\mathrm{mod}(j-1,l)},P_{1,\mathrm{mod}(j+1,l)},P_{2,j}\};$

If i=2, then its peripheral region $P_{around}^2=\{P_{i-1,l},P_{i+1,l},P_{i,\mathrm{mod}(j-1,l)},P_{i,\mathrm{mod}(j+1,l)}\};$

If i=3, then its peripheral region such as, when at P _2,2in, its peripheral region is $P_{around}^2=\{P_{1,2},P_{3,2},P_{2,1},P_{2,3}\};$

S506: the region at the uplink user terminal place that the priority that macro base station reports according to the direct proportion fairness index calculated and micro-base station is the highest and surrounding predeterminable area scope thereof carry out scheduling of resource, obtain the highest uplink user terminal of the priority of described macro base station and downlink user terminal, the uplink user terminal of the optimum of described macro base station can according to DRC (t) Mean Speed of described macro base station uplink user terminal and formula $u_{Mac,U}^{*}(n,t)=\arg \underset{u_{Mac,U}\&Element;\{1,2,\mathrm{...},30\}}{\max }{\mathrm{PF}}_{u_{Mac,U}}^{Mac,U}(n,t)$ Calculate:

When the downlink user terminal that the priority obtaining described macro base station is the highest, by first according to formula $\begin{array}{cc}{\widetilde{PF}}_{u_{Mac,D}}^{Mac,D}(n,t)={\mathrm{PF}}_{u_{Mac,D}}^{Mac,D}(n,t)\&times;\mathrm{\&alpha;}& u_{Mac,D}\&Element;P_{i,j}\&cup;P_{around}^i\end{array}$ Will the direct proportion fairness index of the downlink user terminal of the macro base station in region is multiplied by a constant α (0< α <1), then adopts the direct proportion fairness index after adjustment to adopt formula screening obtains the highest downlink user terminal of the priority of described macro base station

S507: macro base station and micro-base station are according to the user terminal of scheduling (macro base station and the highest uplink and downlink user terminal of micro-base station priorities) with the Mean Speed of user is upgraded according to following formula:

$\begin{array}{c}{R}_{u_{Mic,U}^{*}}(t+1)=(1-\frac{1}{T_c})R_{u_{Mic,U}^{*}}\left(t\right)+\frac{1}{T_c}\&CenterDot;{\mathrm{DRC}}_{u_{Mic,U}^{*}}(n,t),R_{u_{Mic,D}^{*}}(t+1)=(1-\frac{1}{T_c})R_{u_{Mic,D}^{*}}\left(t\right)+\frac{1}{T_c}\&CenterDot;{\mathrm{DRC}}_{u_{Mic,D}^{*}}(n,t),\\ R_{u_{Mic,D}^{*}}(t+1)=(1-\frac{1}{T_c})R_{u_{Mic,D}^{*}}\left(t\right)+\frac{1}{T_c}\&CenterDot;{\mathrm{DRC}}_{u_{Mic,D}^{*}}(n,t),R_{u_{Mic,D}^{*}}(t+1)=(1-\frac{1}{T_c})R_{u_{Mic,D}^{*}}\left(t\right)+\frac{1}{T_c}\&CenterDot;{\mathrm{DRC}}_{u_{Mic,D}^{*}}(n,t)\end{array};$

For the user terminal that this is not dispatched, then make DRC (n, t)=0.

In order to the said method corresponding to A2 disclosed in the embodiment of the present application is clearly introduced, the application additionally uses another specific embodiment and carries out expansion to the method and illustrate:

In the present embodiment, the mode that community divides is identical with a upper embodiment, and integrated by the mode of carrier aggregation by 40 of system discrete subbands, then the transfer of data of TDD mode is carried out in macro base station and micro-base station on this frequency band integrated.The frame format configuration mode of macro base station and micro-base station as shown in Figure 6; wherein subframe 1 is used for sending up-downgoing pilot signal and guard time (GP) for special time slot; in the frame configuration format of macro base station, the ratio of uplink and downlink subframe is 5:4, and in the frame configuration format of micro-base station, the ratio of uplink and downlink subframe is 7:2.

Macro base station is consistent with micro-base station upstream and downstream user number and a upper embodiment, macro base station and micro-base station ascending time slot and descending time slot can RB number be 40.When being in the time slot of macro base station configuration identical with micro-base station, macro base station independently carries out the scheduling of upstream or downstream resource; When being in the time slot of macro base station configuration different from micro-base station, just adopting and disturbing based on space isolation terminal room the resource regulating method avoided.Below for subframe 5, introduce the resource scheduling algorithm that the present invention proposes.In subframe 5, macro base station is in descending time slot and micro-base station is in ascending time slot, and macro base station can use running time-frequency resource micro-base station can its concrete steps following (its flow chart is as shown in Figure 6):

S601: macro base station obtains CQI and the Mean Speed information of 30 the downlink user terminals matched with it, micro-base station obtains CQI and the Mean Speed information of 15 the uplink user terminals matched with it.

S602: macro base station and micro-base station utilize AMC technology, according to the CQI information of each user terminal obtained, determine each user terminal MCS mode, and then determine permission transmission rate DRC (t) of each user terminal at current time, current RB by searching TBS mapping table.

S603: macro base station allows transmission rate and Mean Speed according to formula according to the current time of the downlink user terminal obtained calculate the direct proportion fairness index of described downlink user terminal; Described micro-base station allows transmission rate and Mean Speed according to formula according to the current time of the uplink user terminal obtained calculate the direct proportion fairness index of described downlink user terminal;

S604: described micro-base station according to the direct proportion fairness index calculated, according to formula $u_{Mic,U}^{*}(n,t)=\arg \underset{u_{Mic,U}\&Element;\{1,2,\mathrm{...},15\}}{\max }{\mathrm{PF}}_{u_{Mic,U}}^{Mic,U}(n,t)$ Select optimum uplink user terminal;

S605: described micro-base station is by described optimum uplink user terminal (wherein n ∈ RB ^mic) report to macro base station, described macro base station determines described optimum uplink user terminal region P _i,j(i ∈ { 1,2,3}, j ∈ { 0,1,2,3}) and predeterminable area scope around it

S606: macro base station will the direct proportion fairness index of the downlink user terminal matched with described macro base station in region is according to formula $\begin{array}{cc}{\widetilde{PF}}_{u_{Mac,D}}^{Mac,D}(n,t)={\mathrm{PF}}_{u_{Mac,D}}^{Mac,D}(n,t)\&times;\mathrm{\&alpha;}& u_{Mac,D}\&Element;P_{i,j}\&cup;P_{around}^i,\end{array}$ Be multiplied by a constant α (0< α <1);

Then according to formula the downlink user terminal that the priority that selection and described macro base station match is the highest;

S607: the result according to scheduling adopts formula upgrade mean Speed adopt $R_{u_{Mac,D}^{*}}(t+1)=(1-\frac{1}{T_c})R_{u_{Mac,D}^{*}}\left(t\right)+\frac{1}{T_c}\&CenterDot;{\mathrm{DRC}}_{u_{Mac,D}^{*}}(n,t)$ Upgrade mean Speed the transmission rate that the user terminal current time of the described user terminal be not scheduled allows is set to 0.

In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.

To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (12)

1. an electric power wireless communication resources dispatching method, be applied in the macro base station and micro-base station identical networking system adopting duplex configuration flexibly, it is characterized in that, described method comprises:

Obtain Mean Speed and the CQI information of user terminal, described user terminal comprises uplink user terminal and downlink user terminal;

Adopt the transmission rate that the described user terminal current time of CQI data-evaluation and described CQI information match described in adaptive coding technical basis allows;

The positional information of uplink user terminal according to the transmission rate of the current permission of user terminal, Mean Speed and micro-base station of introducing co-channel interference carries out disturbing based on space isolation the PF factor scheduling of resource avoided, the PF factor of the downlink user terminal of macro base station within the scope of the uplink user terminal region of micro-base station of described introducing co-channel interference and surrounding predeterminable area thereof is multiplied by α, described α is greater than 0 and is less than 1, and determines the uplink user terminal that priority is the highest and downlink user terminal;

The Mean Speed of user terminal upgrading the highest user terminal of described priority and be not scheduled.

2. electric power wireless communication resources dispatching method according to claim 1, is characterized in that, the Mean Speed of described acquisition user terminal and CQI information, comprising:

Macro base station and micro-base station obtain CQI information and the Mean Speed of uplink user terminal and the downlink user terminal matched with it respectively.

3. electric power wireless communication resources dispatching method according to claim 1, is characterized in that, the transmission rate that described in described employing adaptive coding technical basis, user terminal current time described in CQI data-evaluation allows, comprising:

Utilize adaptive coding technical basis CQI information of user terminal described in each to determine the MCS mode of each user terminal, and then determine by searching TBS mapping table the transmission rate that each user terminal allows at current time.

4. electric power wireless communication resources dispatching method according to claim 1, it is characterized in that, according to the transmission rate of the current permission of user terminal, the positional information of the uplink user terminal of micro-base station of Mean Speed and introducing co-channel interference carries out disturbing based on space isolation the PF factor scheduling of resource avoided, the PF factor of the downlink user terminal of macro base station within the scope of the uplink user terminal region of micro-base station of described introducing co-channel interference and surrounding predeterminable area thereof is multiplied by α, described α is greater than 0 and is less than 1, and determine the uplink user terminal that priority is the highest and downlink user terminal, comprise:

According to the user obtained, macro base station and micro-base station believe that the transmission rate that the current time of terminal allows and Mean Speed calculate the direct proportion fairness index of user terminal;

The user terminal the highest with the priority of described micro-base station matches is determined according to described direct proportion fairness index;

Macro base station obtains the highest uplink user terminal identification information of described priority by described micro-base station;

Corresponding to the positional information that described macro base station calculates described identification information place and with the distance of described positional information in preset range, the downlink user terminal that matches with described macro base station;

Described macro base station according to described direct proportion fairness index, described positional information and with the distance of described positional information in preset range, the downlink user terminal that matches with described macro base station carries out scheduling of resource, the user terminal that the priority obtaining matching with described macro base station is the highest.

5. electric power wireless communication resources dispatching method according to claim 4, it is characterized in that, according to the user obtained, described macro base station and micro-base station believe that the transmission rate that the current time of terminal allows and Mean Speed calculate the direct proportion fairness index of user terminal, comprising:

Described macro base station is according to formula calculate the direct proportion fairness index of the uplink user terminal matched with described macro base station according to formula calculate the direct proportion fairness index of the downlink user terminal matched with described macro base station

Described micro-base station is according to formula calculate the direct proportion fairness index with the uplink user terminal of described micro-base station matches according to formula calculate the direct proportion fairness index with the downlink user terminal of described micro-base station matches

Wherein, described u _{mac, U}represent the uplink user terminal matched with described macro base station, u _{mac, D}represent the downlink user terminal matched with described macro base station, described u _{mic, U}represent the uplink user terminal with described micro-base station matches, u _{mic, D}represent the downlink user terminal with described micro-base station matches, described DRC is the transmission rate that user terminal current time allows, and described R is the Mean Speed of user terminal.

6. electric power wireless communication resources dispatching method according to claim 5, is characterized in that, describedly determines the user terminal the highest with the priority of described micro-base station matches according to described direct proportion fairness index, comprising:

Described micro-base station according to calculate with the direct proportion fairness index of the user terminal of described micro-base station matches and formula calculate the uplink user terminal the highest with the priority of described micro-base station matches, according to formula calculate the downlink user terminal the highest with the priority of described micro-base station matches, described x1 is the quantity with the uplink user terminal of described micro-base station matches, and described y1 is the quantity with the downlink user terminal of described micro-base station matches.

7. electric power wireless communication resources dispatching method according to claim 6, it is characterized in that, described macro base station according to described direct proportion fairness index, described positional information and with the distance of described positional information in preset range, the downlink user terminal that matches with described macro base station carries out scheduling of resource, the user terminal that the priority obtaining matching with described macro base station is the highest, comprising:

The direct proportion fairness index of the uplink user terminal that described macro base station matches according to described and described macro base station and formula calculate the uplink user terminal that the priority that matches with described macro base station is the highest;

By described positional information and with the distance of described positional information in preset range, the routine fairness index of downlink user terminal that matches with described macro base station is multiplied by α, described α is greater than 0 and is less than 1;

According to formula calculate the downlink user terminal that the priority that matches with described macro base station is the highest, described in for the routine fairness index of the downlink user terminal that uplink user terminal the highest for described priority and described macro base station are determined according to the positional information of described uplink user terminal be multiplied by α after the direct proportion fairness index that obtains;

Described x2 is the quantity of the uplink user terminal matched with described macro base station, and described y2 is the quantity of the downlink user terminal matched with described macro base station.

8. electric power wireless communication resources dispatching method according to claim 7, is characterized in that, the user terminal that the described priority of described renewal is the highest and the Mean Speed of user terminal be not scheduled, comprising:

According to formula calculate the Mean Speed of the uplink user the highest with the priority of described micro-base station matches, according to formula calculate the Mean Speed of the downlink user the highest with the priority of described micro-base station matches, according to formula calculate the Mean Speed of the highest uplink user of the priority that matches with described macro base station, according to formula the Mean Speed of the downlink user that the priority matched with described macro base station is the highest, is set to 0 by the transmission rate that the user terminal current time of the described user terminal be not scheduled allows.

9. electric power wireless communication resources dispatching method according to claim 4, it is characterized in that, according to the user obtained, described macro base station and micro-base station believe that the transmission rate that the current time of terminal allows and Mean Speed calculate the direct proportion fairness index of user terminal, comprising:

Described macro base station is according to formula calculate the direct proportion fairness index of the downlink user terminal matched with described macro base station described micro-base station is according to formula calculate the direct proportion fairness index with the uplink user terminal of described micro-base station matches

U _{mac, D}represent the downlink user terminal matched with described macro base station, described u _{mic, U}represent the uplink user terminal with described micro-base station matches, described DRC is the transmission rate that user terminal current time allows, and described R is the Mean Speed of user terminal.

10. electric power wireless communication resources dispatching method according to claim 9, is characterized in that, the described upstream and downstream user terminal the highest according to described direct proportion fairness index determination priority, comprising:

Described micro-base station according to calculate with the direct proportion fairness index of the user terminal of described micro-base station matches and formula calculate the uplink user terminal the highest with the priority of described micro-base station matches;

Described x1 is the quantity with the uplink user terminal of described micro-base station matches.

11. electric power wireless communication resources dispatching methods according to claim 10, it is characterized in that, according to the transmission rate of the current permission of user terminal, the positional information of the uplink user terminal of micro-base station of Mean Speed and introducing co-channel interference carries out disturbing based on space isolation the PF factor scheduling of resource avoided, the PF factor of the downlink user terminal of macro base station within the scope of the uplink user terminal region of micro-base station of described introducing co-channel interference and surrounding predeterminable area thereof is multiplied by α, described α is greater than 0 and is less than 1, and determine the uplink user terminal that priority is the highest and downlink user terminal, comprise:

The routine fairness index of downlink user terminal uplink user terminal the highest for described priority and described macro base station determined according to the positional information of described uplink user terminal is multiplied by α, and described α is greater than 0 and is less than 1;

According to formula calculate the downlink user terminal that the priority that matches with described macro base station is the highest, described in for the routine fairness index of the downlink user terminal that uplink user terminal the highest for described priority and described macro base station are determined according to the positional information of described uplink user terminal be multiplied by α after the direct proportion fairness index that obtains;

Described y2 is the quantity with the downlink user terminal of described micro-base station matches.

12. electric power wireless communication resources dispatching methods according to claim 11, is characterized in that, the uplink user terminal that the described priority of described renewal is the highest and downlink user terminal and the Mean Speed of user terminal be not scheduled, comprising:

According to formula calculate the Mean Speed of the uplink user the highest with the priority of described micro-base station matches, according to formula the Mean Speed of the downlink user that the priority matched with described macro base station is the highest.